MOKGAN HEBARD 265 



In the examples having the longest tegmina, these organs are decidedly atten- 

 uate in their distal two-fifths, due to the fact that the costal and sutural mar- 

 gins show a very strong convergence in the third fifth of the tegmen. 



In the condition of maximum tegminal reduction, the wings are minute and 

 greatly atrophied. From this condition, they develop to fully as long as the 

 tegmina in the condition of maximum tegminal development. 



Coloration. — Type. Head cinnamon-buff, microscopically flecked with 

 blackish brown; this increasing on the vertex and occiput, there forming an 

 inconspicuous longitudinal band. Eyes clay color, microscopically marked 

 with a network of blackish brown. Antennae pinkish cinnamon. Pronotum 

 and tegmina sayal brown, with microscopic flecks and longitudinal streaks of 

 bister; prozona showing an indistinct medio-longitudinal band of blackish 

 brown, but with median carina sayal brown; lateral lobes with a longitudinal 

 blackish suffusion dorsad before the principal sulcus. Cephalic limbs and 

 underparts cinnamon-buff; median limbs of the same coloration but flecked 

 with blackish brown. Caudal femora cinnamon-buff, with the three dark 

 areas, characteristic of the species of the genus, heavy and blackish brown. 

 Abdomen cinnamon-buff with proximal segments blackish brown proximad. 



Little color variation is shown by the present series. A few individuals are 

 somewhat recessive in coloration and in these the general coloration is clay 

 color, with all darker markings reduced, the pronotal markings and those of 

 the caudal femora weak and poorly defined . One such example from the Pilot 

 Mountains has the caudal femoral markings obsolete. 



Specimens Examined: 11; 3 males and 8 females. 



Nevada: Foothills of Singatse Range at Mason, Mina and Pilot Moun- 

 tains, three miles east of Mina. 



The series examined, in addition to the type and allotype, are 

 considered paratypes. All were taken by Rehn and Hebard. 



The desert valley at Mina, 4800 to 5300 feet in elevation, with 

 long and very gradual alluvial slopes running down into a large 

 central playa, proved an area of scarce insect life. But, from 

 the several species of dense and heavily thorned, leafless bushes 

 on the slopes, three specimens of this species were secured after 

 long and careful search. On the same day, three miles distant 

 in the sterile and desert Pilot Mountains, three more specimens 

 were taken. These were found in similar thorn bushes, scattered 

 over the almost bare slopes at the foot of precipices and at the 

 heads of canons, at 5500 to 5700 feet. Great numbers of these 

 bushes were examined, the only Orthoptera there found being the 

 few specimens of the present species, Ligurotettix coquillettei Mc- 

 Neill in moderate numbers, and a single specimen of a Decticid 

 which has as yet not been studied. 



Two days later at Mason, in a generally similar area and from 

 similar but heavier thorn bushes, five more individuals were 



TRANS. AM. ENT. SOC, XLV. 



